windows-smb-vulnerability-framework-cve-2025-33073

Windows SMB Client Vulnerability Research Framework Author: cyberseallll Created: 2025 Overview I developed this research framework to analyze and understand CVE-2025-33073, a critical Windows SMB Client Elevation of Privilege vulnerability. This implementation provides comprehensive tools for...

cifswitch-check

cifswitch-check A shell script to check whether a Linux system is exposed to CIFSwitch CVE-2026-46243 — a local privilege escalation vulnerability in the Linux kernel's CIFS/SMB client that has been present since 2007. Runs on bare-metal hosts, VMs, and inside containers. Designed to drop straigh...

kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

A flaw was found in the Linux kernel's CIFS Common Internet File System client. When the cifssanitizeprepath function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-boun...

Blackash-CVE-2025-33073

✨ CVE-2025-33073: Windows SMB RCE Vulnerability 🚨 🔥 High-Severity Authenticated Remote Code Execution 🔥 Improper Access Control in Windows SMB Client CWE-284 🛡️ Key Details at a Glance...

CVE-2025-33073

CVE-2025-33073 — Windows SMB Client NTLM Reflection EoP Research writeup by Sentinel AI Defense. Defensive analysis only — no working exploit or PoC is published here. An improper access control flaw in the Windows SMB Client that revives NTLM reflection techniques thought to be mitigated — letti...

kernel: smb: client: fix change notify replay double-free

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability occurs due to a double-free error when handling change notify replies. If a response attempt returns a replayable error and frees its buffer, and then SMB2notifyinit fails, the same buffer can be freed agai...

kernel: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()

A flaw was found in the Linux kernel's Server Message Block SMB client. A missing lock around the tccount increment in the smb2findsmbsesstconunlocked function creates a race condition. This vulnerability, caused by an incomplete refactoring of locking mechanisms, could lead to unexpected behavio...

CVE-2026-46243

🚨 CVE-2026-46243 - CIFSwitch Escalation locale dei privilegi del kernel Linux LPE Vulnerabilità di escalation locale dei privilegi che interessa il client CIFS/SMB del kernel Linux. 📖 Panoramica CVE-2026-46243 è una vulnerabilità di escalation locale dei privilegi LPE all'interno del client...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098683)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098683 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifsfilldirent There is a race condition in the readdir...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098973)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098973 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: let recvdone verify dataoffset, datalength and remainingdatalength This is inspired ...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098747)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098747 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifsoplockbreak A race condition can occur in cifsoplockbreak...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098694)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098694 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in smb2isvalidoplockbreak Skip sessions that are being teared down...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098924)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098924 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: restrict implied bcc0 exemption to responses without data area smb2checkmessage has ...

The vulnerability of the smbd_post_send_iter() function in the fs/smb/client/smbdirect.c module of the Smb file system in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the smbdpostsenditer function in the fs/smb/client/smbdirect.c module of the Smb file system in the Linux operating system is related to the repeated release of previously released memory. Exploiting this vulnerability could allow a remote attacker to compromise the...

The vulnerability of the matchSession() function in the fs/smb/client/connect.c module of the Smb file system in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the matchSession function in the fs/smb/client/connect.c file of the SMB file system module in the Linux operating system is related to deficiencies in the authentication process. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed a potential Use-after-Free UAF in isvalidoplockbreak. Skipped sessions that are being torn down status == SESEXITING to avoid UAF...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb: client: fixed UAF in async decryption Performing async decryption large read results in a crash due to a slabuseafterfree issue in the crypto API. Reproducing the issue: mount.cifs -o ...,seal,esize=1 //srv/share /mnt dd...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: client: Do not log plaintext credentials in cifssetcifscreds When debug logging is enabled, cifssetcifscreds logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb: Client side – fixed a potential deadlock that could occur when releasing mids. All callers of releasemid seem to hold a reference to @mid; therefore, there is no need to call krefput&mid-refcount, releasemid under...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed a potential Use-after-Free UAF in smb2isnetworknamedeleted. Skipped sessions that are being terminated status == SESEXITING to avoid UAF...